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NDSolve Encountered nonnumerical value for a derivative at t=0
Posted:
Jul 17, 2013 1:44 AM


hi folks, I have one coupled equations which the NDSolve fails at t=0 t x'[t]== x[t]+y[t], t y'[t]== 5 t^2/x[t]^2+x[t]y[t], x[0]=y[0],x[1]=1,{t, 0, 1} from the mathematica help center, there are 2 possible ways to resolve this problem, One possibility is to start at a small \[Epsilon]>0 instead of 0, the other one is Setting SolveDelayed>True will avoid the singularity in the solved form of the equations. But neither of them work for my equation. thanks for help



